Improvement in shingle-machines



@sind @wird Horan-AY c. BABcoc'ie-orEUREKA, CALIFORNIA.l

Letters Patent No. nlroei), dated January 1'7, 1871.

IMPROVEMENT IN SHINGLEfMIACHINES.

TheMSchedule referred to in these Letters Patent and making part of the vsame.

To all 'whom it may couccrn.-

Be it 4known that I, HOLIDAY. C. BABC'OCK, of

Eureka, in the county of Humboldt and State of- California, have invented certain new and useful Improvements in Machines for Shaving and Riving Shingles; 'and I do hereby declare that the following is a full andeXact description of the same, reference being had to the accompanyiug'drawing and to the letters of'reference marked thereon.

. means of the screws C.

.Y The cross-heads pass through openings in the sides of the frame, andare adjusted by means of the gibs D and screws E to the converging guides F.

The guides F are adjustable by means of the elongated holes G, to any desired angle or distance apart, in order to'vary the thieknessior taper ot' the shingle.

H is the crank-shaft, and

I, the connecting-rod, by means of which a reciprocating motion is imparted ltothe sliding plate or platform J .1 j p l v 'To the platforxn'J al'e strongly secured' arms K, projecting through the sides of frame Y. j 'Ihesc arms are provided with cross-arms, to which are rigidly attached rods L for communicating motion to the cross-heads B B.l

M is the river-or'instrument for splittingfthc bolt or block. l

This river isi'alsoniovedrby thc plate o1' platform J, to which it is connected by means of thev rods N.

In order to providca support and holder for thel bolt, so that it maybe operatedupon, I employ the frame O and fixed platihrm P. 4

The bolt should be held down. by a spring or other suitable device, not shown in the drawing.

'lo understand the operation ot' my invention, let

ns suppose that the movable parts are placed in .their extreme forward position towardfthc letter X.

Then, if the bolt is placed upon the platform P, and thel shaft H be caused to revolve, the river M,

guided between vthe frame Oand the gnide-piece Q, will come in contact with the bolt at a height above the platform lJ ofjabout three-eighths of au inch, or equal 'to the greatest thickness of the proposed shingie;` and if the grain of ,the wood composing'said bolt was reasonably straight, said river would bel'drawn Straight through, splitting oli" a piece from theunder side of said bolt, having a-uniform thickness of' three-eighths of an inch.

But to allow for following the grain, the frame O and guide-piece Q are a. little further apart at the rear than at the forward end. v

' The piece thus rivenvo is prevented from coming out backward by means of the pins R, shown in dotted lines in iig. 1.

Spring-catches S are attached to thenuder side of the river, that shut in out of the way while the river is passing through the bolt, but spring down between the pins R, in readiness to catch the piece split oli', and, duringL the advance movement of the parts, push said piece forward along the platform P out from under the. bolt and oil the forward end of said platform,` when it drops onto the sliding platvform J.

During the return or second backward stroke, this piece.,` by coming in contact with the forward end ot the' platform I?, is held stationary, and its forward end, (held down by the guide-bar T and the 1 spring U,) is caught between the knives `A A', and said knives, moving with the.- platform P, will be caused, asv they complete the stroke, to shave olf* all the` superfluous wood, and perfect the shingle, giving a taper and thickness corresponding to the angle and distance apart of the guide F.

The projection V, to which the guide-bar T4 is sev cured,`should be so high orso well jointed to said guide-barthat shavings cannot be forced into the.

joint.

The guide-bar l, and the end of the platform I are made to dovetail into each other, so that the piece from which the shingle is to be formed'can be forced quite oli' the platform J.

In order to support the shingle until. it leaves the knives, the prongs or rodsW are provided and attached as shown. Hav-ing thusdescribed my invention,

What I claim, and desire to secure by Letters Pate ent, is

1. Theriving/ machinery, consisting of the frame O, platform I), pins R, and guide-piece Q, incombination with the' river Mhaving spring-catches S, constructed and operating substantially as described, for the purpose set forth.

2. In combination with saidiivingv machinery, constructed and arranged as described, the platform J, having the guide-bar T, spring S, and projections V, as described.

3. Theshingle-machine, constructed specilically as `-desmibed, with its frame,` platform, knives, guides,

and operating mechanism, whenarranged as described, for the purpose sct'foith In witness whereof I have hereunto set my hand andseal.

HOLIDAY C. BABCOGK. [L s] Witnesses:

C. W. M. SMITH, H. S. TIBBEY. 

